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| Date: | 03 04 1929 |
|---|---|
| Description: | Illustration of a cultivator, with arrows indicating center of furrows in earth. |
| Date: | 01 10 1924 |
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| Description: | Three-quarter view from front right of an orchard disk harrow (exp) set up on a wood floor in front of a backdrop. |
| Date: | 07 11 1924 |
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| Description: | Right side profile view of a man driving a tractor pulling an experimental weighted disk harrow. Buildings are in the background. |
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